This is a world dominated by magic, where humans and demons coexist. Demons exist forever and are immortal. And the stronger the power, the more beautiful it is. If it is a demon noble, his magic power and fighting power are incomparable to humans. A boy from another world is reborn, trying to survive in a world full of dangers, learning strength, and traveling around. Once at a lord's wedding, a magician played a trick to lure out the demon king Dorias, and the original wedding banquet suddenly turned into a hell on earth...